Cranking device.



F. W. YARDE.

CRANKING DEVICE.

APPLICATION FILED IuLY 2'8. I9I4.

1,171,574.. Patented Fab. 916.

' 2sHETs- F. W. DE.

CRANKI VICE. v

APPLICATION FILED 1u 1,171,574. Patented 11eb.15,1916.

2 EEEE TS- EEEEE 2.

FRANK w. YARDE, or RocK FALLs, ILLINOIS.

CRANKING DEVICE.

Application filed July 2B. 1914. Serial No. 853,689.

To all 'whom t may concern YBe it known that I, FRANK W. YARDE, citizen of the United States, residing at Rock Falls, in the county of Whiteside and State Vof Illinois, have invented certain'new and useful Improvements in Cranldng Devices, of which the following isa specification.

Myinvention relates to improvements in starting devicesk for internal combustion engines; particularly the engines of automobiles.

An object of the invention is to provide a means mounted on and adjacent the auxiliary crank shaft of the engine for imparting thereto the movement necessary to a cranking operation, said means being such in its nature as to be actuated from a point adjacent the drivers seat.

The invention, as a further object, contemplates a cranking device manually operable against the tension of suitable springs, the latter being so arranged relatively to the device as to automatically 11e-.adjust the several parts or elements thereof immediately subsequent to a cranking operation, thus permitting, if necessary, a repeated operation of the cranking means.

The above and additional objects are accomplished by such means as are illustrated in their preferred embodiment in the accompanying drawings, described in the .following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

In describing my invention in detail reference will be had'to the accompanying drawings wherein like ,characters denote like or corresponding parts throughout the several views, and in which .Y

Figure 1 is a side elevation of the engine starter, a part of the supporting means thereforbeing vshown in section; Fig. 2 is a top plan view of the device as illustrated in Fig. 1; Figf is an inverted plan view of the operating gear; Fig.` 4 is a top plan view of the gear supporting plate; and Fig. 5 is a detail elevation of the guide screw.

Referring now to the .drawings by numerals, l designates, in section, thatpart of,

the automobile through which the auxiliary crankshaft 2 of the engine extends and to which the supporting plate 3 of the starting device is attached. Said supporting plate 3 is provided with a right .angled extension 4 having openings 5 formed therein, said openings being widely spaced apart and adapted yfor the reception of retaining means'b bolted as at 6 to that portion 1 of the machine. Y

. As shown to advantage in Fig. 4, the supportingplate 3 is concentrically slotted `as indicated at?, through which slot a guide screw 8 extends, the said screw having Specification of Letters '.atent. Patented Feb, 15, 1916, V-

mounted loosely vthereon an operating gear 9 disposed to operate in a substantially hori- Zontal plane. The top face of the gear is provided with teeth 10 so shaped or beveled as to form, whenl taken in connection with a flange 11 a peripheral groove within which is fitted a suitable flexible operating element designated 12. Guide screw 8 is threaded throughout the greater portion ofits length and serves as a shaft for the operating gear 9, said screw passing through the slot 7 aforesaid, suitable means such as indicated at 13 servingV to maintain the screw in place. An eye 14 is formed upon the upper end of the screw, the eye forming. a bearing` for the shaft 2, pins 15 passing through the shaft preventing longitudinal movement thereof independently of like movement onV the part of the screw.V

Mounted on shaftl 2 and meshing with the teeth 10 of the gear 9V is a comparatively small beveled 'gear 16, saidgear being maintained inV mesh through the medium of a spring 17 arranged to embrace the said shaft and to abut respectively the gear and that portionrof the Amachine designated 1 through whichthe said shaft extends.. Y

The underface ofthe operating gear 9 is recessed as shown to advantage in Fig. 3, the recess serving as or providing a housing for a coiled spring 1S arranged therein,'one

end of the springbeing attached as zit-19l to the pin S'acting as the shaft and the opposite end beingl attached as at 20'to the inner wall orthe recess wall of the gear; f v

Vhen it is desired that vshaft 2 be' turned during a cranking operation, element l2 is pulled by grasping handle 2l therefor, the latter being positioned conveniently preferably adjacent thev drivers seat lin the 'ma'- chine. By exerting a pullupon the said Y pin 8 and one of the slot rterminals serving asa stop means therefor.

Movement of the gear 9 circumferentially will impart a lilre movement to the gear 1G, and,"the latter being'rnounted on shaft 2, it

is apparent that the lat-terA will' be' turned'.`

During longitudinal movement of the gear 9,'gear 16 is bodilyf inoved.- against tension of spring; 17, causing the said; spring to .l be depressed as thershaft-,Qzis turned. 'Immediatela7 uponreleasing element l2', the same havingbeenzpulled suiflcientlyto cause the shaft 2-to be e'ectually turned, spring 17'. will automatically' disengage: theV saidshaft 2 with the clutch means (notshowir) Von the/crankl shaft of the engine, at the same jtimeA` bodily return: the operating gear 9- to its normalA position, while the coiled spring 18W-ill reverselyr rotate the said operating gear to infthis lmanner re-adjust or re-set the; startingmechanisin to: its normal inoperative positionV so aszto be subsequently actuated should! the first actuation prove ineffectual in causing the enginefto start.. The pressureyezierted upon element l2 must be suiiicient to rotatev gear 9-5 against tension of coiled spring" 8v and to. bodilyA move the two g'earsparticularlv gear 16 against tenn sion offspring 17.'. As anY auxiliary crank means, lugs; or projections 22' are formed upon; the free end. ofthe shaft 2,; the said lugs-A being engageabley wit-1h' a` crank'. arm, (notshown),y the: latter being of any` suitable construction whereby motion may be imparted tor they shaft.

F-rom'the foregoing, talrenfi'n connection with. the: accompanying drawings it willl be noted that the guide pin 8 serves asabean ingfor'the said shaft?,y and that the latter inturn'serves as a means whereby the said pin'is-y held against rotation; that the readjusting or yresetting operation when taken immediately' subsequent` to a cranking operation is automatic and positive', the return means being governed by the two springs 17 and 118; andthat by dispesing the spring l-Sin a: recessvtherefor ofthe gear' 9, the said spring is housed to in this manner preventdust and dirt from settling andY accumulating therein.

VIn reduction to practice, I have found. that :the forms; of lmy:invention, illustrated intthe' drawingsl and referred: toin the above description, as: thev preferred embodiment, is the most efiicient and practical; yet" realizing that the: conditions concurrent with the adoption of my device will necessarily vary, I desire tof'emphasize the. fact that vanions minorchanges inv details .of construction,` proportion and arrangementI of parts may be resorted to, when required,v without sacrificing any of the advantagesofniy invention, as defined in theappended claims.

Having thus fully described my invention, what Ifclaim` asnew. and desire .to secureby Letters Patent, is z*- l. Ina cranking device for internal combustion engines, a shaft movable axially, a gear upon said shaft, a spring engaging ythe gear, a second; gear in mesh with said first gear, a shaft for said second gear, a coilv bustionengines, an operating gear Yprovided. with a peripheral groove, a shaft uponl which. said. gearfis loosely mounted, -a `support fori: the* gear having 1a sletV formed therein. through which said sha-ft extends, an operating element` coiled about said gear and fitting said groove to rotate, vvl'ienk puiled,l said gear, a: means with-in said gear tolresist suchi movement,`- and. means enga-gingI with.y said-i gear for cranking the engine in the manner stated. y

3. In af'cran'king device for internal combusticncngines, ani operating shaft, aiirst gearupen saidshaft,a spring engaging the irstgea-r and embracing said; shaft, the said spring normafllyf maintaining` the said.y op.n erating'shafct inf aninoperative position, ra secondgeary having avertical axis and. in meshy with said: iint geen said second gear being further provided with a peripheral groove, a shaft for,` saidsecond gear, a support for the gear and Vtliesh'afn.said support having-an'elongated opening formedtherein through which the vertical shaft extends, an operating elementsecured to theI second gear and operating in vthe groove aforesaid,

a coil spring secured tothe shaft and to the second gear, the' said coil spring having-a greater resisting power than'the spring'iirst mentioned to provide for horizontal; move-v ment of the gears .and ther operatingfshaft in. unison: previousy to `a turningmovement IIS of the gears causedYi by thev application ofrv a pull 'upon said! operating:element.v

4^.' In a cranking device for internal] come bustion engines, a crank operatingl shaft movable axially intoiand' out lof engagement with.- the cra-nk shaft of the engine,` a first gear uponi said;V crank operatingfshaft, means urgingsaid gear and said-crank operating shaft axiallyout of engagement. with. said 1,171,574 w Y 't 3 crank shaft, a second gear in mesh With ment of said gear and said crank operating` Y said first gear, a flexible element ooiled shaft, substantially as described. 10 about said second gear and operable to ro- In testimony whereof I aix my signature tate it and the crank operating shaft to in presence of two Witnesses.'V

1 bodily 'move said shaft into engagement i i FRANK W. YARDE.

with the crank shaft, a means resisting Witnesses: 1 movement of the element in .thel manner A. S. HORN, stated, and a means to limit bodily move- P. J. HAYES.

Copies of this patent may be obtained for .ve cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

